Chemical Engineering MCQs

A. Kcal/hr/m3 combustion space
B. Kcal/m3 combustion space
C. Kcal/hr
D. None of these

A. Quantity & temperature of waste gas
B. Dust concentration & nature of dust in waste gas
C. Corrosive nature of the waste gas
D. All a., b. and c.

A. Conduction
B. Convection
C. Radiation
D. Either a., b. or c.; depends on the type of furnace

A. Is the removal of carbon from iron carbide (fe3c)
B. Affects its crystalline structure
C. Is favoured by co2
D. All a., b. and c.

A. Roasting
B. Melting
C. Reheating
D. None of these

A. Retards the heat transfer
B. Assists in temperature equalisation in the charge
C. Permits the use of controlled atmosphere for the protection of stock
D. All a., b. and c.

A. 5
B. 60
C. 20
D. 40

A. By-product coke ovens
B. Beehive coke oven
C. Blast furnace stoves
D. Soaking pits

A. 250
B. 650
C. 850
D. 1000

A. Reduces its thermal efficiency
B. Is indicated by flame sting out
C. Increases the flue gas temperature
D. None of these